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WO1996035115A1 - Ensemble detecteur pour la commande de l'aeration d'espaces interieurs - Google Patents

Ensemble detecteur pour la commande de l'aeration d'espaces interieurs Download PDF

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Publication number
WO1996035115A1
WO1996035115A1 PCT/EP1996/001609 EP9601609W WO9635115A1 WO 1996035115 A1 WO1996035115 A1 WO 1996035115A1 EP 9601609 W EP9601609 W EP 9601609W WO 9635115 A1 WO9635115 A1 WO 9635115A1
Authority
WO
WIPO (PCT)
Prior art keywords
detection
exhaust gases
sensors
sensor
gasoline
Prior art date
Application number
PCT/EP1996/001609
Other languages
German (de)
English (en)
Inventor
Hanns Rump
Original Assignee
I.T.V.I. International Techno Venture Invest Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7760751&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1996035115(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by I.T.V.I. International Techno Venture Invest Aktiengesellschaft filed Critical I.T.V.I. International Techno Venture Invest Aktiengesellschaft
Priority to DE59608707T priority Critical patent/DE59608707D1/de
Priority to JP53296096A priority patent/JP3860210B2/ja
Priority to EP96914935A priority patent/EP0824688B1/fr
Priority to BR9608127A priority patent/BR9608127A/pt
Priority to US08/930,528 priority patent/US6004201A/en
Publication of WO1996035115A1 publication Critical patent/WO1996035115A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B60H1/008—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being air quality
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00—Other air-treating devices
    • B60H3/0085—Smell or pollution preventing arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display

Definitions

  • a suitable sensor system determines the pollutant content of the outside air and acts on the air recirculation flap in the sense described above.
  • a sensor for diesel exhaust gases e.g. tungsten trioxide
  • another sensor for gasoline exhaust gases e.g. tin dioxide
  • a separate signal path is assigned to each sensor.
  • At least one analog / digital converter is assigned to each sensor, which forwards the signals to a central evaluation module (e.g. a microprocessor).
  • the object of this invention is to reduce costs and effort by single-channel signal processing.
  • FIG. 4 shows the typical signal curve of a tin dioxide sensor which is gassed with gasoline exhaust gases 4.1 and later with diesel exhaust gases 4.2.
  • the sensor resistance is significantly reduced for gasoline emissions. With diesel exhaust gases, the sensor resistance increases to a lesser extent.
  • FIG. 5 shows the typical signal curve of a tungsten trioxide sensor that is gassed with gasoline 5.1 and later with diesel 5.2.
  • the sensor resistance is slightly reduced for gasoline emissions.
  • the sensor resistance increases significantly with diesel exhaust gases.
  • This invention therefore proposes a basic structure corresponding to FIG. 1.
  • a tin dioxide sensor 1 is switched as a voltage divider with a tungsten dioxide sensor 2.
  • the divider voltage 5 is fed to a signal processing 3.
  • the output signal 4 controls the air recirculation flap. Because the diesel or gasoline exhaust gas pulses reach the sensors virtually in series, either sensor 1 becomes low-resistance (gasoline exhaust gases) or sensor 2 becomes high-resistance because diesel exhaust gases are present. In any case, a voltage pulse that is positive in this case can be observed at the divider voltage. If the sensors are interchanged, a negatively directed voltage pulse is of course observed.
  • the divider voltage is advantageously processed in only a single channel, which considerably reduces the effort.
  • FIG. 2 shows a variant in which the sensors each form a voltage divider with an ohmic resistor.
  • the divider voltages are added in phase in an operational amplifier 2.5, so that a gas-dependent voltage pulse is observed at the output, which always goes in the same direction, regardless of the nature of the gas offered.
  • Figure 3 shows a further variant, in which the sensors are each arranged in the upper or lower branch of the voltage divider.
  • the two divider voltages are added 3.5.
  • the two sensors always being switched such that the tendencies of the resistance curve of the two sensors lead to the same direction of the voltage curve.
  • Both a tin dioxide sensor and a tungsten trioxide sensor are advantageously applied to a single substrate with a common heater.
  • this combination sensor is integrated into a circuit in which the divider voltage undergoes an impedance conversion in an operational amplifier 7.3.
  • a controller electronics 7.4 feeds the heating resistor 7.5 in such a way that a constant temperature is reached regardless of the wind and outside temperature.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

L'invention tire profit du fait que les variations de la résistance de détecteurs à oxide métallique se font de façon inversée lors de l'exposition à des gaz réducteurs ou oxydants. Si les détecteurs sont reliés de sorte que les variations du signal électrique ne se fassent que dans un sens lors de l'exposition à un gaz, le traitement électronique du signal peut se faire, de façon économique, dans un seul canal.
PCT/EP1996/001609 1995-04-29 1996-04-18 Ensemble detecteur pour la commande de l'aeration d'espaces interieurs WO1996035115A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE59608707T DE59608707D1 (de) 1995-04-29 1996-04-18 Sensoranordnung zur steuerung der belüftung von innenräumen
JP53296096A JP3860210B2 (ja) 1995-04-29 1996-04-18 室内−内部空間の換気制御用センサ装置
EP96914935A EP0824688B1 (fr) 1995-04-29 1996-04-18 Ensemble detecteur pour la commande de l'aeration d'espaces interieurs
BR9608127A BR9608127A (pt) 1995-04-29 1996-04-18 Dispositivo sensor para o comando da ventilação de espaços internos
US08/930,528 US6004201A (en) 1995-04-29 1996-04-18 Sensor assembly for controlling the ventilation of indoor spaces

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19515886A DE19515886B4 (de) 1995-04-29 1995-04-29 Sensoranordnung zur Steuerung der Belüftung von Innenräumen
DE19515886.5 1995-04-29

Publications (1)

Publication Number Publication Date
WO1996035115A1 true WO1996035115A1 (fr) 1996-11-07

Family

ID=7760751

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1996/001609 WO1996035115A1 (fr) 1995-04-29 1996-04-18 Ensemble detecteur pour la commande de l'aeration d'espaces interieurs

Country Status (8)

Country Link
US (1) US6004201A (fr)
EP (1) EP0824688B1 (fr)
JP (1) JP3860210B2 (fr)
KR (1) KR100420503B1 (fr)
BR (1) BR9608127A (fr)
DE (2) DE19515886B4 (fr)
ES (1) ES2171673T3 (fr)
WO (1) WO1996035115A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001062306A3 (fr) * 2000-02-01 2002-04-25 T E M Tech Entwicklungen Und M Procede et dispositif pour regler la capacite entre deux electrodes dans un gaz
KR100357219B1 (ko) * 1999-04-14 2002-10-18 오토전자 주식회사 배기가스 센서 및 배기가스 센서를 이용한 환기 제어 장치
WO2005026712A1 (fr) * 2003-09-09 2005-03-24 Fis Inc. Detecteur de gaz
KR100764862B1 (ko) * 2006-03-07 2007-10-09 에후 아이 에스 가부시키가이샤 가스 검출 장치
EP1565740B1 (fr) * 2002-11-29 2008-10-08 paragon AG Procede pour reconnaitre des odeurs
DE10013841B4 (de) * 2000-03-21 2010-07-08 Automotive Ag Anordnung zur Aufbereitung von Luft in lufttechnischen Anlagen

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19708442A1 (de) * 1997-03-01 1998-09-03 Hella Kg Hueck & Co Klimaanlage für den Innenraum eines Fahrzeuges
US6382013B1 (en) * 2000-05-12 2002-05-07 Daimlerchrysler Corporation Method of reading an oxygen sensor input
US20030129936A1 (en) * 2002-01-08 2003-07-10 Shaikh Mohammad Ali Room ventilating apparatus
JP4171803B2 (ja) * 2003-07-03 2008-10-29 独立行政法人産業技術総合研究所 酸化物半導体を使った酸素センサ
US20060042353A1 (en) * 2004-08-25 2006-03-02 Brent Marquis Analyte quantitation using semiconducting metal oxide gas sensors
US7900501B2 (en) 2005-12-20 2011-03-08 Atmospheric Sensors Ltd. Air quality monitor
US20110253359A1 (en) * 2010-04-16 2011-10-20 Zeta Communities, Zero Energy Technology & Architecture System and method for sensing air flow, carbon dioxide or volatile organic compound in residential building

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988002704A1 (fr) * 1986-10-11 1988-04-21 Hoelter Heinz Capteur pour commander des clapets de circulation d'air sur des vehicules a moteurs
JPH02126146A (ja) * 1988-11-04 1990-05-15 Figaro Eng Inc 自動車の外気導入制御用のガスセンサ
US5320577A (en) * 1993-03-22 1994-06-14 Figaro Engineering Inc. Air conditioner control device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3304324C3 (de) * 1983-02-09 1996-08-14 Bayerische Motoren Werke Ag Verfahren zum Steuern einer Belüftungseinrichtung für den Innenraum eines Kraftfahrzeugs und Einrichtung zur Durchführung dieses Verfahrens
DE3514588A1 (de) * 1985-04-23 1986-10-23 Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck Gehaeuse fuer sensoren, vorzugsweise fuer den einsatz von arbeitsschutzkabinen bei kraftfahrzeugen mit geregelter und temperierter luftmenge
DE3525774A1 (de) * 1985-07-19 1987-01-29 Hoelter Heinz Verfahren zur stabilisierung von halbleitergassensoren durch erhoehung der schadstoffkonzentrationen, vorzugsweise fuer kraftfahrzeuge
DE3877873D1 (de) * 1987-04-02 1993-03-11 Eftag Entstaubung Foerdertech Schaltungsanordnung zur auswertung der von einem halbleitergassensor erzeugten signale.
US5062065A (en) * 1989-10-06 1991-10-29 Leopold Kostal Gmbh & Co., Kg Environmental sensing and ventilation control system with compensation for sensor characteristics
JP3102879B2 (ja) * 1989-10-17 2000-10-23 エー．テー．エル．エレクトローニク テヒノロギー ルンプ ゲゼルシャフト ミット ベシュレンクテル ハフツング ガスセンサー装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988002704A1 (fr) * 1986-10-11 1988-04-21 Hoelter Heinz Capteur pour commander des clapets de circulation d'air sur des vehicules a moteurs
JPH02126146A (ja) * 1988-11-04 1990-05-15 Figaro Eng Inc 自動車の外気導入制御用のガスセンサ
US5320577A (en) * 1993-03-22 1994-06-14 Figaro Engineering Inc. Air conditioner control device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 14, no. 349 (P - 1084) 27 July 1990 (1990-07-27) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100357219B1 (ko) * 1999-04-14 2002-10-18 오토전자 주식회사 배기가스 센서 및 배기가스 센서를 이용한 환기 제어 장치
WO2001062306A3 (fr) * 2000-02-01 2002-04-25 T E M Tech Entwicklungen Und M Procede et dispositif pour regler la capacite entre deux electrodes dans un gaz
DE10013841B4 (de) * 2000-03-21 2010-07-08 Automotive Ag Anordnung zur Aufbereitung von Luft in lufttechnischen Anlagen
EP1565740B1 (fr) * 2002-11-29 2008-10-08 paragon AG Procede pour reconnaitre des odeurs
WO2005026712A1 (fr) * 2003-09-09 2005-03-24 Fis Inc. Detecteur de gaz
KR100764862B1 (ko) * 2006-03-07 2007-10-09 에후 아이 에스 가부시키가이샤 가스 검출 장치

Also Published As

Publication number Publication date
KR100420503B1 (ko) 2004-05-31
US6004201A (en) 1999-12-21
KR19990007939A (ko) 1999-01-25
EP0824688A1 (fr) 1998-02-25
DE19515886A1 (de) 1996-10-31
JPH11504429A (ja) 1999-04-20
ES2171673T3 (es) 2002-09-16
DE19515886B4 (de) 2004-03-11
EP0824688B1 (fr) 2002-02-06
JP3860210B2 (ja) 2006-12-20
BR9608127A (pt) 1999-02-09
DE59608707D1 (de) 2002-03-21

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